1882965681 has 12 divisors (see below), whose sum is σ = 2731823952. Its totient is φ = 1249779096.

The previous prime is 1882965677. The next prime is 1882965691. The reversal of 1882965681 is 1865692881.

It is a happy number.

It is not a de Polignac number, because 1882965681 - 2² = 1882965677 is a prime.

It is a super-2 number, since 2×1882965681² = 7091119511647587522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1882965641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458791 + ... + 462876.

It is an arithmetic number, because the mean of its divisors is an integer number (227651996).

Almost surely, 2^1882965681 is an apocalyptic number.

It is an amenable number.

1882965681 is a deficient number, since it is larger than the sum of its proper divisors (848858271).

1882965681 is a wasteful number, since it uses less digits than its factorization.

1882965681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921900 (or 921897 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 54.

The square root of 1882965681 is about 43393.1524667199. The cubic root of 1882965681 is about 1234.8497975524.

The spelling of 1882965681 in words is "one billion, eight hundred eighty-two million, nine hundred sixty-five thousand, six hundred eighty-one".